Recent measurements of temperature fluctuations in the cosmic microwave background radiation indicate that about 70 percent of the mass-energy in the universe must be in the form of dark energy
Indicate whether the statement is true or false
TRUE
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A metal wire has a resistance of 14.00 ? at a temperature of 25.0°C. If the same wire has a resistance of 14.55 ? at 90.0°C, what is the resistance when its temperature is ?32.0°C?
a. 2.21 ? b. 13.5 ? c. 5.13 ? d. 39.2 ? e. 13.0 ?
the greater total thermal energy U, and
A. The quantity is greater for gas A. B. The quantity is greater for gas B. C. The quantity is the same for both gases. D. One does not know enough to compare the quantities.
Laboratory experiments conducted with particle accelerators confirm predictions made by the theory that unifies ________
A) the strong, weak, and electromagnetic forces into the GUT force B) the electromagnetic and weak forces into the electroweak force C) the unification of all four forces into a single "superforce" D) the strong and weak forces into the combined nuclear force
Why does Europa's surface promise life of some kind?
What will be an ideal response?